CLEAR (a signal)
CLEAR (a signal)
To change a signal aspect from its most restrictive aspect to a less restrictive aspect.
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ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023
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ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023
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